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05-22-2013, 01:30 PM | #1 |
Senior Member
Join Date: May 2010
Location: West Haven, CT
Posts: 143
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Install intake and exhaust manifolds
Hi guys, I will be installing my intake and exhaust manifolds soon. Machine work is done. The question is, do you bolt together the intake and exhaust manifold then install it on the engine then torque the unit to the engine, or, do you loosely tighten the intake and exhaust together then torque it to the engine then tighten the intake to exhaust bolts ? Thanks to all that reply. Dennis
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05-22-2013, 01:36 PM | #2 |
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Join Date: May 2010
Location: Oregon
Posts: 5,958
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Re: Install intake and exhaust manifolds
I would loosely bolt the two and then tighten the manifold to block nuts up to about 30# even and then snug up the two cap screws.
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05-22-2013, 01:38 PM | #3 |
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Join Date: Mar 2011
Location: Noxon Montana
Posts: 532
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Re: Install intake and exhaust manifolds
I prefer to loosely assemble the two manifolds together, then install/torque on engine, then tighten the two bolts on the manifolds, but not too tight. I also use some anti-sieze on the two bolts.
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05-22-2013, 01:47 PM | #4 |
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Join Date: Oct 2010
Location: Grafton, MA
Posts: 1,226
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Re: Install intake and exhaust manifolds
I've done this once. I securely tightened the bolts holding the intake and exhaust manifolds together, had them machined as a unit, and then bolted it to the engine. This presumed that the manifold surface on the engine was flat; I suppose this might not always be the case.
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05-22-2013, 02:11 PM | #5 |
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Join Date: May 2010
Location: Bucks Co, Pa
Posts: 3,740
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Re: Install intake and exhaust manifolds
Bolt them together tightly, grind them till both the intake and exhaust are resurfaced.
bolt on engine as one piece. Terry |
05-22-2013, 06:04 PM | #6 |
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Join Date: Jan 2012
Location: Tx
Posts: 502
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Re: Install intake and exhaust manifolds
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